Cushion-wheel.



P. H. MARTIN.

CUSHION WHEEL.

APPLIUATION :FILED MAR.12,1913.

i 1,090,785. Patented Mar.17,1914.

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CUSHION-,WHEEL weaves..

Specification of Letters Patent.

Applicationiledlvarch 12, 191312,l Seria1Nor75-3,874.`

useful Improvements in Cushion -`Wheels;- and l de hereby declare the following tofbe a full, clear, and exact description of the invention, such as will enable others skilled in the art to which'it appertains to make and use the saine.

My invention relates to cushion wheels,

and one of the objects, among others, is to provide a wheel embodying the desirable characteristics of the pneumatic tread and flat unyielding tread wheels.

Other objects and advantages will be hereinafter pointed out in the .specification and claims.

In the accompanying drawings, Figure 1 represents a view in side elevation of the complete wheel. Fig. 2 represents a side elevation of the wheel after the removal of the flange carried by the rim. Fig. 3 represents a side elevation of the wheel with two o-f the guide flanges removed, and, Fig. l represents a vertical sectional view through Fig. l.

Referring to the drawings, 1 denotes a spindle adapted for rotatable engagement over an axle (not shown), and is provided with outwardly directed flanges 2, for securely clamping the hub block 3 in operable position. The flanges 2 of the spindle l terminate inwardly of the peripheral edge of the hub 3, and to the exposed portions of the hub block 3 are secured radially extending and spaced 4guard flanges t. A rim 6 of substantially non-yielding material of sufficient size to permit of the insertion of the hub block 3, carrying the guard flanges 4t, is disposed about said guard flanges and in spaced relation thereto. The opposing faces of the rim 6 are provided with in-` wardly directed guard flanges 7, telescopically engaging the guard flanges 4. Entirely incased within the guard fianges l and 5, and the hub block 3 and rim 6, is arranged a plurality of elastic spokes 8. The

spokes are preferably formed from rubber' or some light material having elastic qualities, and are formed of such size at their inner ends as to occupy the entire peripheral surface of the hub block 8.

The outer ends of the spokes are preferably reduced somewhat in size so as to increase the resiliency` between the hub and rim.. Relative rotation `of the inner and outer parts of the wheel is i prevented by meansv of the inwardly directed tongues 9,

i carried by the guard flanges 7 and engaging y betweenithe collars l0, rotatably mounted over studs l1 fixed to the flanges 4. The rim 6 is shown provided with a metallic tire 12, but as will be understood, any desired tire may `be employed. The spokes 8 are preferably loosely fitted within the wheel in order that they may be easily and quickly replaced when worn out.

What l claim is l. A resilient wheel providing a spindle, a hub secured thereon, circular inner guards secured on said hub on both sides thereof, and extending beyond the periphery of the hub, a rim, resilient spokes frictionally engaging said hub and rim, outer annular guard flanges secured on said rim and telescopically engaging said inner guards on the outer sides thereof, depending fingers on said outer guards, and a pair of rotatable collars secured to the inner guards, said collars engaging said fingers to prevent creeping in the wheel parts.

2. A resilient wheel providing a spindle, a hub secured thereon, plane circular inner guards on said hub on both sides thereof, and extending beyond the periphery of the hub, a rim, solid resilient separate spokes wider at their inner than at their outer ends, the inner ends of said spokes bearing directly against, but unattached to, said hub, the sides of the spo-kes at their inner ends lying directly against, but unattached to, said inner guard flanges, the inner ends of said spokes occupying collectively the periphery of said hub, and abutting against each other, outer annular guard anges secured on said rim and telescopieally and slidably engaging said inner guards on the outer sides thereof, the outer ends of said spokes bearing against, but unattached to, said rim, said outer ends being spaced from each other, and co-acting means on said outer and inner guard flanges to prevent creeping of the wheel parts.

3. A resilient wheel providing a spindle, a hub secured thereon, circular inner guards secured on said hub on both sides thereof and extending beyond the periphery of the hub, a rim, resilient spokes frictionally engaging said hub and rim, outer circular guard flanges secured on said rim and telescopieally engaging said inner guards on the l outer sides thereof, depending ngers on said outer guards, and means on said inner guards for frictionally engaging said fingers to prevent creeping of the Wheel parts.

4. A resilient Wheel providing a spindle, a hub secured thereo-n, circular inner guards secured on said hub on both sides thereof and extending beyond the periphery of the hub, a rirn, resilient spokes frietionally engaging said hub and rim, outer circular guard flanges secured on said rim and teleseopically engaging said inner guards on the outer sides thereof, a pair of rotatable eollars secured to each of the inner Guards, and means on said outer guard anges for lengaging said rotatable collars to prevent PERLEY H. MARTIN.

Witnesses B. F. FULLER, C. A. FULLER.

Copies of this patent -may be obtained for've cents each, by addressing the Commissioner of Patents, Y

Washington, D. C. 

